1320402520

素因数分解:

$2^3\times 5^1\times {\mathrm{2063}}^1\times {\mathrm{16001}}^1$

素因数の和:18075

約数の個数: 32

約数和(自身を含む): 2972531520

約数和(自身を除く): 1652129000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2063, 4126, 8252, 10315, 16001, 16504, 20630, 32002, 41260, 64004, 80005, 82520, 128008, 160010, 320020, 640040, 33010063, 66020126, 132040252, 165050315, 264080504, 330100630, 660201260, 1320402520]

約数ペア:

[(1, 1320402520), (2, 660201260), (4, 330100630), (5, 264080504), (8, 165050315), (10, 132040252), (20, 66020126), (40, 33010063), (2063, 640040), (4126, 320020), (8252, 160010), (10315, 128008), (16001, 82520), (16504, 80005), (20630, 64004), (32002, 41260)]